Cheapest return flights from Denver to Keflavik in January from 353€

Best time to book flights for Denver (DEN) to Keflavik (KEF) flights at AirHint

AirHint found the following cheapest return flights from Denver (DEN) to Keflavik (KEF) in January 2025 (see full year).

Return flights

24 Jan - 31 Jan Frontier Airlines
23 Jan - 31 Jan Frontier Airlines
27 Jan - 03 Feb Frontier Airlines
22 Jan - 29 Jan jetBlue
13 Jan - 24 Jan Frontier Airlines
20 Jan - 28 Jan Frontier Airlines
12 Jan - 23 Jan Icelandair direct
22 Jan - 06 Feb Icelandair direct
20 Jan - 28 Jan Icelandair direct
08 Jan - 12 Jan Frontier Airlines
01 Jan - 10 Jan Frontier Airlines
06 Jan - 12 Jan Frontier Airlines

Also check the deals for one-way flights from Denver to Keflavik in January.

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The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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